Savalou weather in May

In May, Savalou sees average daytime highs of 33°C and overnight lows near 24°C, with 141 mm of rain across 19 wet days and about 12.4 hours of daylight. It is the 7th-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 33°C through the month. The sky is clear or mostly clear about 5% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 12 h 18 min at the start of May to 12 h 24 min by month's end. Set against the rest of the year, May is Savalou's 8th-clearest and 3rd-windiest month. For the whole year in context, see Savalou's year-round climate.

Daytime high
33°
7th warmest
Overnight low
24°
10th coldest
Rainfall
141 mm
19 wet days
Daylight
12 h 24 min
6:38 AM – 6:59 PM
Cloud cover
77%
8th clearest
Wind
7 km/h
3rd windiest
Solar energy
5.22 kWh/m²
Travel score
2.7
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 33°C through the month.

A typical May day in Savalou reaches about 33°C in the afternoon and slips back to 24°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 35°C. Set against its neighbours, May runs about 1°C cooler than April and about 2°C warmer than June.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13324
23324
33324
43324
53324
63324
73324
83324
93324
103324
113324
123324
133324
143324
153324
163324
173324
183324
193324
203324
213324
223324
233324
243224
253224
263224
273224
283224
293224
303224
313224

How May really feels in Savalou

Once humidity and wind are folded in, May averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
31
2 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

The story in May is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Savalou weather by month

How May compares with the rest of the year at a glance. May is the 7th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan34° / 22°4111.63.8
Feb36° / 24°142.511.72.6
Mar36° / 25°53911.92.2
Apr34° / 25°971412.22.5
May33° / 24°1411912.42.7
Jun31° / 23°16322.412.53.0
Jul30° / 23°19424.412.43.3
Aug29° / 23°21423.712.33.5
Sep30° / 23°20523.5123.2
Oct32° / 23°1031611.83.5
Nov34° / 23°153.511.63.7
Dec34° / 22°40.911.53.9

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 5% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 16% of May, with mostly cloudy or overcast conditions the remaining 79%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12377
22377
32476
42476
52377
62377
72377
82278
92377
102377
112377
122377
132278
142278
152278
162377
172377
182278
192179
202179
212179
222080
232080
241981
251981
261981
271882
281882
291783
301783
311783

Chance of precipitation in May

Any precipitation

Savalou gets around 141 mm of rain over 19 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 61% and peaks near 72% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
157
258
358
459
559
659
759
859
959
1059
1158
1258
1358
1458
1558
1658
1759
1859
1959
2060
2161
2262
2363
2464
2565
2667
2768
2869
2970
3071
3172

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

Most of May feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, May lands in the oppressive band about 77% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
17327
27327
37327
47327
57327
67426
77426
87525
97525
107525
117525
127624
137624
147624
157624
167723
177723
187723
197723
207822
217822
227822
237921
247921
258020
268020
278119
288218
298317
308416
318416

Wind in May

Winds average 7 km/h in May.

Across May, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 18 min at the start of May to 12 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over May. Sunrise moves from 6:41 AM to 6:37 AM, and sunset from 6:58 PM to 7:02 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:416:58
212.36:416:58
312.36:406:58
412.36:406:58
512.36:406:58
612.36:406:58
712.36:396:58
812.36:396:58
912.36:396:58
1012.36:396:58
1112.36:386:58
1212.36:386:59
1312.36:386:59
1412.46:386:59
1512.46:386:59
1612.46:386:59
1712.46:376:59
1812.46:376:59
1912.46:377:00
2012.46:377:00
2112.46:377:00
2212.46:377:00
2312.46:377:00
2412.46:377:01
2512.46:377:01
2612.46:377:01
2712.46:377:01
2812.46:377:02
2912.46:377:02
3012.46:377:02
3112.46:377:02

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.22 kWh/m².

For context, solar energy here swings from a low near 4.05 kWh/m² to a high of 6.02 kWh/m² in March across the year — May's 5.22 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.4Bright
35.4Bright
45.4Bright
55.4Bright
65.4Bright
75.4Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.2Bright
205.2Bright
215.2Bright
225.2Bright
235.1Bright
245.1Bright
255.0Bright
265.0Bright
275.0Bright
284.9Bright
294.9Bright
304.9Bright
314.8Bright
Planning a trip in May

Hazard calendar for Savalou

In seasonPeak

In May, Savalou sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Savalou's monsoon runs April–October, when most of the year's rain falls.

Savalou sees seasonal dust haze (January–April), heaviest in February.

Monsoon
Dust
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is May a good time to visit Savalou?

Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

2.7
Sightseeing
9th-best month of the year
4.8
Beach & pool
8th-best month of the year

May is a weaker month for outdoor sightseeing in Savalou.

What to pack for Savalou in May

From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In May, Savalou sees daytime highs around 33°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 19 days see rain.

light clothesrain gearsun protection

UV index in Savalou in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Savalou peaks around March 24 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 7 (high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highMar 24UV 13Dec 20UV 7
UV index (midday)Level
Jan8Very high
Feb9Very high
Mar13Extreme
Apr13Extreme
May11Extreme
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep12Extreme
Oct12Extreme
Nov9Very high
Dec7High

Air quality in Savalou in May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.

Air quality in Savalou is worst in February — around 85 µg/m³ PM2.5 (unhealthy), about 4.6× the cleanest month (August, 19 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0306090JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorUnhealthyFeb 984 µg/m³Aug 1219 µg/m³
PM2.5 (µg/m³)Level
Jan82Unhealthy
Feb85Unhealthy
Mar45Poor
Apr39Poor
May24Moderate
Jun20Moderate
Jul19Moderate
Aug19Moderate
Sep20Moderate
Oct30Moderate
Nov38Poor
Dec67Unhealthy
Location & terrain

Where is Savalou?

Savalou sits at 7.9°N, 2.0°E, 181 m above sea level, in Benin. The nearest listed city is Glazoué, 28 km away.

BantéSavéDjidjaOuesséKpozounAbomey

Topography around Savalou

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Savalou.

Within 3 km, the terrain around Savalou has significant variations in elevation — a maximum elevation change of 428 m around an average of 188 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 453 m; within 80 km, significant variations in elevation — a maximum elevation change of 521 m.

The land around Savalou is covered by trees (46%) and shrubs (27%) within 3 km, trees (40%) and shrubs (39%) within 16 km, and shrubs (47%) and trees (31%) within 80 km.

3 km
428 m
16 km
453 m
80 km
521 m
treesshrubsgrasslandcroplandartificial surfaces
May weather nearby: Glazoué 28 km · Dassa-Zoumè 30 km · Banté 55 km · Savé 57 km · Djidja 65 km · Ouessé 80 km · Kpozoun 82 km · Abomey 83 km

Benin travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / E
220 V · 50 Hz
Prices
≈ 34% of US
price level, 2025
GDP per capita
$1,658
2025
Happiness
4.4 / 10
World Happiness, 2025
Safe drinking water
18%
of population, 2024
Homicide rate
1.1
per 100k, 2017
Road deaths
26.8
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Very low
EF EPI 406
Religion
Muslim 28%Roman Catholic 26%Protestant 14%Vodoun 12%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Savalou (7.9281°, 1.9756°, elevation 181 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).